I need the answer as soon as possible (ii) A 11 kV, 50 MVA alternator is protected by a circulating current protection scheme. Thegenerator neutral is grounded through a resistance of 10 Q. The protective relay is set to operatefor an out of balance current, which is 0.25% of the rated alternator current. Turns ratio of theneutral CT is 200/5. Determine the percentage of winding that remains protected.

Protective relay: A relay is an automated device that detects an improper electrical circuit state…

(ii) A 11 kV, 50 MVA alternator is protected by a circulating current protection scheme. The generator neutral is grounded through a resistance of 10 2. The protective relay is set to operate for an out of balance current, which is 0.25% of the rated alternator current. Turns ratio of the neutral CT is 200/5. Determine the percentage of winding that remains protected.

(ii) A 11 kV, 50 MVA alternator is protected by a circulating current protection scheme. The generator neutral is grounded through a resistance of 10 2. The protective relay is set to operate for an out of balance current, which is 0.25% of the rated alternator current. Turns ratio of the neutral CT is 200/5. Determine the percentage of winding that remains protected.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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